JP2008106992A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain an increase in storage volume and improvement of storage capacity of a lowermost storage chamber by placing a compressor at an upper part and to facilitate compressor mounting work to the upper part. <P>SOLUTION: The refrigerator comprises a heat insulating box body, a recess 50 formed recessively onto the refrigerator inner side behind the top face of the heat insulating box body, and a cover for covering the recess 50. The recess 50 is provided with a compressor 52 of a refrigerating cycle, and a placing plate 114 for placing the compressor 52. Since the placing plate 114 and the recess 50 have a space, propagation of compressor vibration and noise to a refrigerator body can be suppressed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a refrigerator in which a compressor is placed behind the top surface.

  In recent years, refrigerators have become more energy-saving from the viewpoint of protecting the global environment, and are required to be small and can be used in large quantities, so to speak, space-saving, large capacity, and improved usability and storage.

  In the prior art, in order to realize a refrigerator that can be placed small and large, a pipe that serves as a condenser is arranged inside the heat insulation box, thereby effectively utilizing the space that does not affect the storage volume ( For example, see Patent Document 1).

  As shown in FIGS. 12 and 13, the refrigerator main body 1 is composed of an outer box 2, an inner box 3, a foam insulation 4 filled between the two, and a machine room 8 is provided at the bottom of the main body 1. The compressor 9 and the blower 10 that dissipates heat generated from the compressor 9 are disposed in the machine room 8, and the rear surface of the machine room 8 is covered with the cover 15.

  In addition, a cooler chamber 5 is provided on the back of the inner box 3, a cooler 6 that generates cool air in the cooler chamber 5, and a blower 7 that forcibly circulates the generated cool air are disposed, and the discharge of the compressor 9 A high-pressure side pipe constructed by connecting serially a heat radiating pipe 11 that also serves as a condenser and a capillary tube 12 is connected between the side and the inlet of the cooler 6, and the outlet of the cooler 6 and the suction of the compressor 9 are connected. A low-pressure side pipe constituted by connecting a suction pipe 13 provided with a capillary tube 12 in series is connected to the side. The heat radiating pipe 11 also serving as the condenser is embedded in the foam heat insulating material 4 on the back of the refrigerator body 1.

  FIG. 14 is a diagram showing the refrigeration cycle. The compressor 9, the heat radiating pipe 11, the capillary tube 12, and the cooler 6 are sequentially connected by a suction pipe 13 to form an annular closed circuit.

In the above configuration, the refrigerant that has passed through the cooler 6 is compressed by the compressor 9 and becomes a high-temperature, high-pressure gaseous refrigerant. This gaseous refrigerant dissipates heat through the heat radiating pipe 11 and becomes a medium-temperature, high-pressure liquid refrigerant. Subsequently, the liquid refrigerant is depressurized by the capillary tube 12 and then evaporated while passing through the cooler 6 to become a low-temperature and low-pressure refrigerant gas, thereby forming a heat exchange function in each compartment. Thereafter, the refrigerant is sucked into the compressor 9 again in a gas state, thereby completing the refrigeration cycle.
JP 2002-364975 A

  However, in the above conventional configuration, since the machine room for storing the compressor is located behind the bottom surface of the refrigerator main body, the storage volume of the lowermost storage room is small, and the storage space that cannot be reached by the uppermost storage room As a result, the storage was not necessarily good.

  In addition, the compressor installed behind the bottom face has a problem that when there is almost no gap with the back wall that is normally installed, the heat exhausted by the compressor cannot be performed well, and the heat is easily trapped. It was.

  The present invention solves the above-described conventional problems, and places a compressor behind the top surface of the uppermost storage chamber, which is an invalid space that does not reach even if it is stretched back, and stores the lowermost storage chamber. While increasing the capacity and storage capacity, and promoting the heat dissipation of the compressor located on the top surface that is relatively easy to open, an efficient refrigeration cycle is formed, and the compressor is fixed behind the top surface. An object of the present invention is to provide a refrigerator that can be easily performed and further suppresses the vibration of the compressor from propagating to the main body, thereby reducing the noise.

  A heat insulation box, a recess formed by recessing the inside of the cabinet behind the top surface of the heat insulation box, and a cover covering the recess, the compressor of the refrigeration cycle, and the compressor are placed in the recess A mounting plate, and the mounting plate and the recess have a space.

  The refrigerator of the present invention has a compressor installed behind the top surface of the uppermost storage room, which is an invalid space that does not reach even if it is stretched back, and increases the storage capacity of the lowermost storage room, improving the storage capacity. By promoting the heat dissipation of the compressor located on the top surface, which is relatively easy to open, an efficient refrigeration cycle can be formed, and furthermore, a space is provided in the mounting plate and the refrigerator body, so the compressor vibration and noise can be reduced to the refrigerator body Can be suppressed.

  Invention of Claim 1 is the heat insulation box which consists of an outer box, an inner box, and the heat insulating material provided between the said outer box and the said inner box, in the warehouse inner side behind the top | upper surface of the said heat insulation box. A recess formed by recessing and a cover covering the recess, the recess including a compressor of a refrigeration cycle and a mounting plate for mounting the compressor, and the mounting plate and the recess include a space. It is possible to form an efficient refrigeration cycle by increasing the storage capacity of the lowermost storage room, improving storage capacity, and promoting heat dissipation of the compressor located on the top surface that is relatively easy to open. Furthermore, since a space is provided in the mounting plate and the refrigerator main body, it is possible to suppress the propagation of compressor vibration and noise to the refrigerator main body.

  The invention according to claim 2 is the invention according to claim 1, wherein the space between the mounting plate and the recess is formed by providing a recess step in the recess, and the installation height dimension of the compressor By suppressing this, it is possible to minimize the reduction in the storage capacity of the uppermost storage chamber.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein a sound absorbing material is inserted into the space between the mounting plate and the concave portion, and the compressor vibration and noise are supplied to the refrigerator body. Propagation and sound leakage from the refrigerator body can be suppressed.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the mounting plate is fixed to the concave portion via a cushioning material, and the compressor vibration and noise are suppressed. Propagation to the refrigerator body can be minimized.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the placing plate and the compressor are supported and fixed by a fixing means and installed in the concave portion. Therefore, it is possible to easily fix the compressor to the mounting plate.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
1 is a front view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, and FIG. 3 is a refrigerant pipe configuration diagram of the refrigerator according to the same embodiment. 4 is a top view of the concave portion of the refrigerator in the embodiment, and FIG. 5 is a view of the vicinity of the compressor in the embodiment.

  In FIG. 1 to FIG. 5, the refrigerator main body 30 includes a heat insulating box 31 that is divided into a plurality of heat insulating sections and a door provided in each heat insulating section. The heat insulating box 31 includes a heat insulating wall formed by injecting a foam heat insulating material 34 into a space formed by an inner box 32 formed by vacuum molding a resin body such as ABS and an outer box 33 using a metal material such as a pre-coated steel plate. ing. For example, rigid urethane foam, phenol foam, styrene foam, or the like is used as the foam heat insulating material 34. Use of hydrocarbon-based cyclopentane as the foaming material is better from the viewpoint of preventing global warming.

  The heat insulation box 31 forms a plurality of storage chambers, and has a structure of a refrigeration chamber 40, an ice making chamber 41, a switching chamber 42, a vegetable chamber 43, and a freezing chamber 44 from above, and a plurality of compartments dividing each storage chamber. A partition wall 45 is provided, and 45a, 45b, 45c, and 45d are provided from the top. For example, the partition wall 45 d is a thermally insulated wall and partitions the vegetable compartment 43 and the freezing compartment 44. The front opening of each heat insulation section is partitioned from each partition wall and the front edge of the heat insulation box 31, and a heat insulation door is provided in each front opening via a gasket (not shown). From the top, the refrigerator door 40a, the ice making door 41a, the switching chamber door 42a, the vegetable compartment door 43a, and the freezer compartment door 44a.

  Next, each storage chamber of the heat insulation box 31 will be described.

  The refrigerator compartment 40 is normally set at 1 to 5 ° C. with the temperature not frozen for refrigerated storage as the lower limit. A concave portion 50 for storing the compressor 52 projects upward from the storage chamber, and a plurality of shelves 70 for organizing and storing food and the like are provided. Inside the refrigerator compartment door 40a, a plastic bottle or the like is provided. A plurality of pockets 71 for storing beverages are provided. A storage case 72 for improving the freshness of meat fish or the like is provided at the lowest level, and is set at a relatively low temperature, for example, -3 to 1 ° C.

  The ice making chamber 41 is normally set at −22 to −18 ° C. to generate and store ice. The inside of the refrigerator is provided with an ice making mechanism 73 having an ice making tray for generating ice, and is configured to accommodate an ice storage container 74 for storing the produced ice and to be pulled out by a rail (not shown) or the like. Yes.

  The switching chamber 42 is set to, for example, a refrigerated chamber set at about 3 ° C, a chilled chamber set at about 1 ° C, a partial chamber set at about -1 ° C to about -3 ° C, and about -7 ° C. It is used by switching as a soft freezer, a freezer set at about -18 ° C.

  The vegetable room 43 is generally set to 2 ° C. to 7 ° C., which is the same as or slightly higher than the temperature of the refrigerated room 40, and the freshness of the leafy vegetables can be maintained for a long time as the temperature is lowered. The inside of the cabinet is configured to accommodate a vegetable compartment container 75 that can organize and store food such as vegetables, and can be pulled out to the front with a rail (not shown).

  The freezer compartment 44 is normally set at −22 to −18 ° C. for frozen storage, but may be set at a low temperature of −30 or −25 ° C., for example, to improve the frozen storage state. The inside of the cabinet accommodates a freezer compartment 76 that can organize and store foods, and is configured to be pulled out by a rail (not shown) or the like.

  A cooling chamber 80 is provided on the back of the vegetable compartment 43 and the freezing compartment 44, and the cooling compartment 80 partitions the vegetable compartment 43 and the freezing compartment 44 by a partition wall 45e having heat insulation properties. The vegetable compartment 43 and the freezer compartment 44 are partitioned by a partition wall 45d having heat insulation properties.

  The cooling chamber 80 is provided with an evaporator 83 for exchanging heat in the cabinet to convert it into cold air, and a cooling fan 84 for sending the cold air to each storage chamber, and is attached to the evaporator 83 during cooling. A defrosting device 85 configured with a heater or the like for defrosting the frost is provided. The evaporating dish 86 for storing defrosted water is configured to be disposed on the bottom surface of the heat insulating box 31.

  Such a refrigerator is provided with a refrigeration cycle as shown in FIG. 3, and is configured such that the refrigerant sealed in the compressor 52 circulates in the refrigeration cycle. Hereinafter, the refrigeration cycle will be described.

  The refrigeration cycle is entirely composed of a sealed space, compresses the enclosed refrigerant and sends out the high-temperature and high-pressure refrigerant to the refrigeration cycle, the condenser 91 that dissipates the refrigerant and condenses and liquefies it to medium temperature and high pressure, dust and metal Dryer 108 equipped with a filter (not shown) for preventing powder or the like from returning to the compressor 52, a suction member (not shown) for adsorbing moisture in the system, a decompression device 109 for decompressing the liquefied refrigerant, and evaporating the refrigerant The evaporator 83 to be generated and the suction pipe 110 for returning the refrigerant vaporized by the evaporator 83 to the compressor 52 are connected to each other by the refrigerant pipe 111.

  Here, the compressor 52 is placed in a concave portion 50 in which the back side is recessed in a stepped shape that is one step lower on the top surface portion of the heat insulating box 31. The recess 50 is surrounded by left and right walls formed by the outer box 33, and is configured to open above and behind the heat insulating box 31, and the opening is covered with a cover 112. Further, a flow in which a heat radiating fan 113 for circulating the air in the space of the recess 50 is placed side by side with a predetermined distance from the compressor 52 and air is applied to the compressor 52. It is arranged so as to circulate and promote heat dissipation.

  Next, attachment of the compressor 52 will be described below.

  The compressor 52 is not directly attached to the recess 50, but the compressor 52 is mounted on a mounting plate 114 constituting at least two flange surfaces via a cushioning material 115 such as a rubber leg or a spring leg, The buffer material 115 is fitted into the mounting portion 116 of the compressor 52 and is fixed to the mounting plate 114 with mounting members 117 such as screws so as not to move on the mounting plate 114. A mounting plate 114 on which the compressor 52 is supported and fixed in this manner is attached to the recess 50.

  About the refrigerator comprised as mentioned above, the effect | action is demonstrated below.

  First, the compressor 52 is not disposed in the rear region of the freezing chamber 44 that is the lowermost storage chamber of the heat insulating box 31, but is placed in the recess 50 at the rear of the top surface so that the user of the refrigerator compartment 40 Instead of reducing the space that is difficult to reach, that is, close to the invalid space, the storage capacity of the freezer compartment 44 can be increased and the storage performance can be improved. That is, positioning the compressor 52 behind the top surface makes it possible to utilize the internal volume of the refrigerator main body 30 very well. However, since the compressor 52 is heavy, it is difficult to attach the top surface portion. However, in this configuration, the support and fixing of the compressor 52 to the mounting plate 114 can be finished before attaching to the recess 50, and the support and fixing are not performed. It is very easy to attach the finished mounting plate 114 to the recess 50.

  Moreover, since the space 114a is provided between the mounting plate 114 and the recess 50, it is possible to suppress the propagation of compressor vibration and noise to the refrigerator body.

(Embodiment 2)
FIG. 6 is a top view of a recessed portion of the refrigerator according to the second embodiment of the present invention, and FIG. 7 is a rear perspective view of the refrigerator according to the second embodiment of the present invention, showing a state in which a refrigeration cycle component such as a compressor is removed. 8 is a view of the vicinity of the compressor according to the second embodiment of the present invention.

  In addition, about the same structure as Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  6, 7, and 8, reference numeral 118 denotes a recess, and the left wall 118 a, right wall 118 b, bottom wall 118 c, and back wall 118 d that define the recess 118 are mainly composed of a resin plate. Integrated molding with resin may be adopted over the entire surface, but a combination structure with steel plate etc. is also possible for reasons such as strength, moldability and molding cost, so at least 1/2 of the total surface area is formed with resin It is configured to be.

  Further, a part of the bottom wall 118c is formed as a recess 118e, and a mounting plate 120 on which a compressor 114 is mounted is provided.

  In the configuration as described above, the surface of the compressor 52 becomes hot during operation of the compressor 52, but 1/2 of the total surface area of each wall 118a, 118b, 118c, 118d, 118e of the recess 118 is thermally conductive. Since it is made of a bad resin and does not conduct heat directly by the space 114b, the intrusion heat into the refrigerator compartment 40 can be suppressed, and an efficient refrigeration cycle can be formed.

(Embodiment 3)
FIG. 9 is a view of the vicinity of the compressor according to the third embodiment of the present invention. In addition, about the same structure as Embodiment 1, 2, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  In FIG. 9, the height of the flange surface of the mounting plate 121 constituting at least two flange surfaces is such that when the mounting plate 121 is installed in the bottom wall concave portion 118e of the concave portion 118, the bottom wall concave portion is higher than the height of the upper surface of the mounting plate 121. It is configured to be lower than the depth of 118e.

  In the configuration as described above, since the space 114a is provided between the mounting plate 121 and the bottom wall recess 118e, the compressor vibration and the propagation of noise to the refrigerator main body can be suppressed.

  Furthermore, by reducing the installation height dimension of the compressor 52, it is possible to minimize the reduction in the storage volume of the uppermost storage chamber.

(Embodiment 4)
FIG. 10 is a view of the vicinity of the compressor according to the fourth embodiment of the present invention. In addition, about the same structure as Embodiment 1, 2, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  In FIG. 10, the sound absorbing material 123 is inserted into the space between the mounting plate 122 on which the compressor 52 is mounted and the bottom wall recess 118e.

  In the above configuration, since the sound absorbing material 123 absorbs noise generated from the compressor 52, propagation of the compressor noise to the refrigerator main body and sound leakage from the refrigerator main body can be suppressed.

(Embodiment 5)
FIG. 11 is a compressor vicinity according to the fifth embodiment of the present invention. In addition, about the same structure as Embodiment 1, 2, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  In FIG. 11, the mounting plate 122 on which the compressor 52 is mounted is fixed to the bottom wall 118c via a buffer material 124.

  In the configuration as described above, the vibration of the compressor 52 does not propagate directly to the bottom wall 118c, so that the propagation of the compressor vibration and noise to the refrigerator main body can be suppressed to the maximum.

  As described above, the refrigerator according to the present invention reduces the ineffective space as much as possible by storing functional parts such as a compressor in the top recess of the heat insulation box that is out of reach, and is stored at the bottom. The storage capacity of the room is increased to improve the storage capacity of the entire refrigerator, and it can be easily performed even when the compressor is installed upward, and the noise caused by the compressor can be suppressed to the maximum. Can be applied.

Front view of the refrigerator in Embodiment 1 of the present invention AA line sectional view of FIG. Refrigerant piping configuration diagram of the refrigerator in the same embodiment Top view of the recess of the refrigerator in the same embodiment Compressor vicinity view in the same embodiment Recessed portion top view of the refrigerator in the second embodiment of the present invention Rear perspective view of the refrigerator in the same embodiment Compressor vicinity view in the same embodiment Compressor vicinity diagram in Embodiment 3 of the present invention Compressor vicinity diagram in Embodiment 4 of the present invention Compressor vicinity diagram in Embodiment 5 of the present invention Cross-sectional view of a refrigerator in the prior art Rear perspective view of refrigerator in prior art Refrigeration cycle diagram of refrigerator in the prior art

Explanation of symbols

31 Heat Insulation Box 32 Inner Box 33 Outer Box 34 Foam Insulation Material 50 Recess 52 Compressor 112 Cover 114 Mounting Plate 114a Space 114b Space 114c Space 118 Recess 118a Left Wall 118b Right Wall 118c Bottom Wall 118d Back Wall 118e Bottom Recess 120 Placement plate 121 Placement plate 122 Placement plate 123 Sound absorbing material 124 Buffer material

Claims (5)

  In the heat insulation box body comprising an outer box, an inner box, and a heat insulating material provided between the outer box and the inner box, a concave portion and a concave portion formed by being dented inward on the rear side of the top surface of the heat insulation box body. A refrigerator comprising a cover, wherein the recess includes a compressor of a refrigeration cycle and a mounting plate on which the compressor is mounted, and the mounting plate and the recess have a space.   The refrigerator according to claim 1, wherein the space between the mounting plate and the concave portion is formed by providing a concave step in the concave portion.   The refrigerator according to claim 1 or 2, wherein a sound absorbing material is inserted into the space between the mounting plate and the recess.   The refrigerator according to any one of claims 1 to 3, wherein the mounting plate is fixed to the concave portion via a cushioning material.   The refrigerator as described in any one of Claim 1 to 4 which installs in the said recessed part in the state by which the said mounting plate and the said compressor were supported and fixed by the fixing means.

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